Detailed cartography for marine and lakes is updated daily, which makes Navionics+ the perfect choice for cruising, sailing and fishing. Get Nautical Chart, with clear and thorough chart data; SonarChart™, an exclusive 1 HD bathymetry map; and Community Edits, local content from the community. Daily updates and advanced features are included for 1 year and provide you with Dock-to-dock Autorouting1, SonarChart™ Live, Advanced Map Options and Plotter Sync. Simply plug your card into your computer and register at Navionics.com.